usb: xhci-mtk: remove unused members

Now some members about phys and wakeup are not used anymore,
remove them.
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/1618031406-15347-5-git-send-email-chunfeng.yun@mediatek.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/host/xhci-mtk.h

@@ -145,9 +145,6 @@ struct xhci_hcd_mtk {
 	struct regulator *vusb33;
 	struct regulator *vbus;
 	struct clk_bulk_data clks[BULK_CLKS_NUM];
-	struct regmap *pericfg;
-	struct phy **phys;
-	int num_phys;
 	bool lpm_support;
 	bool u2_lpm_disable;
 	/* usb remote wakeup */